On the logarithmic coefficients of close to convex functions

For f analytic and close to convex in D=: |z|< 1\, we give sharp estimates for the logarithmic coefficients γ ₙ of f defined by log f(z)/z=2∑ ₙ₌₁∞ γ ₙzⁿ when $n=1, 2,3$.